本文论证了非负光滑离散函数累加生成后具有近似的指数规律，即灰指数律。
It is shown that the grey exponential law can be obtained by means of accumulative generation for non-negative smooth discrete function.
对该数的指数型生成函数，得到了它的封闭形式。
A closed form for the exponential generating function of the generalized Cauchy Numbers is obtained.
根据标号有向块的指数型生成函数，研究了具有唯一一个割点的标号有向连通图及所有割点都在一个块上的标号有向连通图的计数问题。
The essay has a study on enumeration question labeled oriented connected graphs with only one cut vertices and labeled oriented connected graphs that all of cut vertices are in same block.
根据标号有向块的指数型生成函数，研究了具有唯一一个割点的标号有向连通图及所有割点都在一个块上的标号有向连通图的计数问题。
The essay has a study on enumeration question labeled oriented connected graphs with only one cut vertices and labeled oriented connected graphs that all of cut vertices are in same block.
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